/*
 * Copyright 2019-2020 by Nedim Sabic Sabic
 * https://www.fibratus.io
 * All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package net

// L4Proto is the type alias for the Layer 4 protocol.
type L4Proto uint8

const (
	// TCP identifies TCP Layer 4 protocol.
	TCP L4Proto = iota + 1
	// UDP identifies UDP Layer 4 protocol.
	UDP
)

// String returns the string representation of the Layer 4 protocol.
func (proto L4Proto) String() string {
	switch proto {
	case TCP:
		return "tcp"
	case UDP:
		return "udp"
	default:
		return "unknown"
	}
}
